What's the difference between Japanese deep-roasted coffee beans and Nordic deep-roasted coffee beans?

Professional barista communication, please pay attention to coffee workshop (Weixin Official Accounts cafe_style)

Hand net roast coffee bean experience combined with their own experience and network teaching materials

I learn hand net baking time is not long, baking less than 50 nets, online learning to watch some videos, will you ask yourself why you want to learn hand net baking?

As far as coffee lovers are concerned, there are at least a few benefits to hand roasting:

First, it is cheap, small and flexible, and does not take up space. You can enjoy the fun of coffee roasting without buying expensive and complex roasters, and you can master the complete process of roasting, grinding and making coffee.

Second, for individuals, families or a few friends, the amount of coffee roasted by the hand net can fully meet the needs of their own, family and friends; the roasting machine has a large amount of roasting, and for individuals or families, if it is not consumed in a short period of time, it is a great waste.

Third, it is relatively precise instrument control and automated baking machine, hand net baking more by physical and mental feelings and the accumulation of practical experience, in the baking process to get more fun. According to Taguchi and many domestic and foreign roasting masters, hand-net roasting can not only observe and personally experience every step and different changes of coffee beans in the roasting process, but also skilled operators can roast coffee beans with color and aroma no less than commercial professional roasters.

Fourth, the biggest advantage of hand net baking is that the whole baking process is an open environment, although silver skin flying around is annoying, but this is also one of its biggest advantages, so the coffee beans baked by hand net are very pure and completely without any smoky taste, and the best coffee beans can be baked with the most primitive tools. I have seen some people use edible aluminum foil to wrap the net to bake, which instead loses the advantage of the net, and it is easy to cause smoke and miscellaneous flavor. Japan's Taguchi is recognized as a master baker, who has developed the world's first-class professional baking machine, but his favorite at home is hand net baking.

Fifth, the amount of hand net baking is less, but it is also an advantage of it, like small pot cooking is easier to master than large pot cooking, and small pot cooking is always better than large pot Oh, less is not afraid of failure and repetition, all kinds of beans and different baking degrees can be tried, with the accumulation of experience and lessons, your hand net baking effect will be better and better.

I have seen some textbooks saying that in Japan, Korea and Taiwan, hand net roasting is an indispensable process for any training professional roaster. Coffee roasters often say: If you can't even bake or bake well, let alone operate a professional and complex roaster.

In layman's terms, learning to play fine hand baking is an insurmountable process and stage for any baker.

These delicious coffee beans are all from my hand net roasting

Although the tools of hand net roasting are very simple, they can also roast rich and delicious coffee beans.

Japan Three Snow Three·Snow flat hand net (diameter 15cm)(other brands also sell), electronic scale, stainless steel bowl screen (weighing beans or beans can be used), 20 mesh stainless steel flat screen (special for cooling beans, because the flat area is large, you can also use other flat screens I use is the ordinary baking flat screen (304 stainless steel), blow from bottom to top with a fan, cooling effect is better), gloves, a small desktop fan (electric wind blowing is also available).

Yejia Xuefei and Yunnan Iron Card are beans that are easier to bake

Remove defective beans and beans that are too large and too small by hand, and make the beans as uniform as possible.

I bake a fixed 100g each time, never greedy (the reason is related to the hand net area).

Pour the weighed green coffee beans into the flat hand net

This handnet was bought by Ma Yun's family, hehe. bargains

The size of the initial dehydration flame

7-8 At the end of the minute dehydration, the beans turn pale yellow. At this time, you can slightly increase the temperature and let the beans enter 1 explosion.

As the temperature increases, it is estimated that at about 200 degrees Celsius, as the color of the beans begins to change rapidly, the smell is also more intense, indicating that the beans are about to enter a burst period, because the beans themselves will release heat at the same time, so shake the net quickly to make the beans roll evenly.

With the sound from messy to dense, from dense to messy, slowly there is no sound, and the smell of sweet fragrance is more concentrated, it means that the end of the explosion, this bean I like in the end of the explosion, before the arrival of the second explosion taste, so keep the original flame, handle the distance between the net and the stove slightly higher, continue to bake for 2 minutes.

(Borrowed from this network)

Japan three snow hand net (also has a similar treasure has sold hee hee) The special feature is to make several protrusions at the bottom of the baking net. When gently shaking the roasting net from side to side, the coffee beans will roll and change position due to the convex groove, so that the heat is more uniform. The position of coffee beans without convex grooves is difficult to change easily.

Here is a special talk about how to choose the hand net problem, I think it is very important, many friends on how to correctly choose the hand net there are large errors, even lead to the hand net baking itself also produced a lot of errors.

I have seen many times that there are two semicircular stainless steel nets combined into a circular hand net, Taobao also has similar spherical hand net sales, the price is very cheap. The Japanese hand net is round flat, but the price is relatively expensive, so many friends choose the cheap spherical hand net.

However, after my practice and repeated comparison of the two kinds of hand nets, I think that the hand net baking with a round bottom is the best, for the following reasons:

The flat hand net can spread the beans evenly, and it only needs a very light wrist force to shake and flip the beans, so girls and weak people can also easily operate the net baking.

Because the flat-bottom hand net is a neat horizontal plane, which is consistent with the fire source of the circular plane, the heated area is relatively uniform, and the phenomenon of uneven frying is not easy to occur;

Flat-bottomed hand net area is larger and heated evenly, baked beans color is basically consistent;

This emphasis is not to say that round nets cannot roast coffee, but compared to flat nets, spherical nets clearly have the following fatal weaknesses or serious deficiencies:

First, because the bottom is semicircular, coffee beans can not be evenly tiled, a lot of beans must be piled up, which itself is extremely unfavorable to hand net baking;

Second, in order to make each coffee bean stacked up evenly heated during the roasting process, it is definitely not possible to simply rotate and shake the coffee beans horizontally like a flat hand net. It is necessary to vigorously bump up and down + shake to make the coffee beans evenly heated. Some friends who love the hand net even invented the word "dipper". However, in this way, the whole roasting process will become quite physical, and only strong men can be competent. It is difficult to do this with girls 'weak physical strength and wrist strength.

Third, because the net bottom of the round bottom spherical hand net is a hemisphere, which makes the heating area of coffee beans not on a horizontal plane, the area close to the heat source is small, and the distance is also close and far, so the beans are heated unevenly, and a little attention will occur. Moreover, from the strange shape of the spherical hand net, it can not be baked horizontally like a flat-bottomed hand net, nor can it be baked smoothly on a fixed support like a roller. It will not only destroy the original stable firepower, but also make the temperature of the beans fluctuate in the fierce fluctuation, unable to heat up or cool down stably.

All in all, if novices, especially girls, learn to bake, it is strongly recommended to choose a round flat hand net.